Use WhoIs lookup anytime you want to perform a search to see who owns a domain name, how many pages from a site are listed with Google or even search WhoIs address listings for a website's owner.
The word act, as used in the term Act of Congress, is a common, not a proper noun. The capitalization of the word act is deprecated by some dictionaries and usage authorities. Some writers, in particular the U.S. Code, capitalize Act.
Income Tax Act S. 49. For most people, the gains and losses from call and put options are taxed as capital gains (on capital account). However, if you are in the business of buying and selling stock, then your gains and losses from options will be treated as income (on income account - see capital or income).